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| 1. |
A gardener pushes a lawn roller through a distance of 20m. If he applies a force of 20kg weight in a direction inclined at 60° to the ground, find the work done by him. (g=9.8m/s2) |
| A. | 400J |
| B. | 1960J |
| C. | 250J |
| D. | 2514J |
| Answer» C. 250J | |